Home / 160,639.32-221,683.50-89,020.50

Finding the Fourth Proportional to 160,639.32, 221,683.50 and 89,020.50

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Solution

The fourth proportional to 160,639.32, 221,683.50 and 89,020.50 is: 122,848.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,639.32 : 221,683.50 = 89,020.50 : x
  2. Step 2: Convert to fraction form
    160,639.32/221,683.50 = 89,020.50/x
  3. Step 3: Cross multiply
    160,639.32x = 221,683.50 × 89,020.50
  4. Step 4: Simplify right side
    160,639.32x = 19,734,376,011.75
  5. Step 5: Solve for x
    x = 19,734,376,011.75/160,639.32
  6. Step 6: Final answer
    x = 122,848.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.